Region
The flag of Barcelona is the municipal flag of Barcelona, which combines the cross of Saint George, the patron saint of Catalonia, with the traditional red and yellow bars of the Senyera, the ancient symbol of the Crown of Aragon.
The coat of arms of Barcelona is the official emblem of the City Council of Barcelona, the capital of Catalonia, has its origin in the Middle Ages, these arms were first documented in 1329. The Government of Catalonia conferred the coat of arms and the flag as official symbols of the municipality in 2004. It has an escutcheon in lozenge which is commonly used in municipal coats of arms of cities in Catalonia. Currently the City Council of Barcelona also uses an isotype based on the heraldry of the city.